<template>
  <div class="todo-header">
    <input type="text" v-model="text" placeholder="请输入你的任务名称，按回车键确认" @keyup.enter="onEnter" />
  </div>
</template>

<script>
export default {
  name: 'Header',
  components: {},
  props: {
    addItem: Function
  },
  data() {
    return {
      text: ''
    }
  },
  methods: {
    onEnter() {
      //1 校验数据不能为空
      if (this.text === '') {
        alert('请输入内容')
        return
      }
      //  2 收集数据
      const content = { text: this.text, complete: false }
      //  3 存到todos
      this.addItem(content)
      //  清楚输入框
      this.text = ''
    }
  }
}
</script>

<style scoped>

/*header*/
.todo-header input {
  width: 560px;
  height: 28px;
  font-size: 14px;
  border: 1px solid #ccc;
  border-radius: 4px;
  padding: 4px 7px;
}

.todo-header input:focus {
  outline: none;
  border-color: rgba(82, 168, 236, 0.8);
  box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075), 0 0 8px rgba(82, 168, 236, 0.6);
}

</style>
